Just like every other machine, a computer’s performance also reduces automatically after continuous use for a number of years. You may consider sluggish startup, poor hard drive response, and spinning beach ball as the symptoms of computer’s slowdown. However, the actual cause could be corrupt disk permissions, fragmentation, or anything unknown. Though disk permissions can be repaired with Disk Utility, Mac does not offer any utility for hard drive defragmentation.
Hard drive’s memory is fragmented when large files are moved repeatedly from one memory location to another. In reality, fragments are segments of files scattered all over the hard drive due to an inefficient memory allocation scheme used by the operating system. For example, if a data segment allocates a memory block whose size in larger as compared to its own. Alternatively, size of a segment could be larger than that of the allocated block. In both conditions, the rest and the allocated spaces are wasted resulting in fragmentation. Besides, when the size of an already saved file is increased by adding data, the new data is saved at a new memory location because of which file becomes fragmented.
See also: How To Recover Accidentally Erased Data From Mac Hard Drive ?
Those who are using Mac OS X Mountain Lion or OS X Lion might be thinking that HFS+ or Mac OS Extended (Journaled) file system used in Mac is intelligent enough, then how Mac can suffer from fragmentation issue. However, since Disk Utility does not offer any fix for the issue, there should be some way to perform defragmentation on Mac. Though the HFS+ file system automatically defrags small (less than 20MB in size) files, users have to defrag large files using any disk defragmentation software for Mac. Get a reliable and efficient software to defrag Mac’s hard drive to fix slow Mac. A good disk defragmentation software optimizes memory in the following way:
As the initial step, defragmentation software analyzes the memory followed by the memory allocation scheme. During this phase, every single array of data blocks and their logical ordering are scanned efficiently. After that, the software processes these arrays of physical memory blocks containing data in order to reorganize them in a random logical order. Moreover, all free spaces or unallocated memory blocks found in these contiguous arrays are eliminated one by one. Later on, defragmentation software merges all eliminated blocks to combine several small allocations into one large allocation on the hard drive. Getting a defragmentation tool for Mac on the Internet is very easy. Download a good software that is compatible with your Mac OS X version and hardware (i.e. Processor and RAM).
You can check for the for some ways to escape yourself from the disasters on Mac OS.
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